Written by Charles S. Knight, SEO, and edited by Richard MacManus. The Top 100 is listed at the end of the analysis. Ask anyone which search engine they use to find information on the Internet and they will almost certainly reply: &quot;Google.&quot; Look a little further, and market research shows that people actually use four main search engines for 99.99% of their searches: GoBy HeavyGin Reference > Search Engineswith system:unfiledby 29 users